1159123 has 4 divisors (see below), whose sum is σ = 1324720. Its totient is φ = 993528.

The previous prime is 1159091. The next prime is 1159127. The reversal of 1159123 is 3219511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1159123 - 2⁵ = 1159091 is a prime.

It is a super-2 number, since 2×1159123² = 2687132258258, which contains 22 as substring.

It is a Duffinian number.

1159123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1159094 and 1159103.

It is not an unprimeable number, because it can be changed into a prime (1159127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82788 + ... + 82801.

It is an arithmetic number, because the mean of its divisors is an integer number (331180).

2^1159123 is an apocalyptic number.

1159123 is a deficient number, since it is larger than the sum of its proper divisors (165597).

1159123 is an equidigital number, since it uses as much as digits as its factorization.

1159123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165596.

The product of its digits is 270, while the sum is 22.

The square root of 1159123 is about 1076.6257474164. The cubic root of 1159123 is about 105.0452714834.

The spelling of 1159123 in words is "one million, one hundred fifty-nine thousand, one hundred twenty-three".